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flesh out call tracing in new JIT code

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This commit is contained in:
Joel Dice
2007-11-26 16:15:53 -07:00
parent 49ed41daa0
commit 0bbe9489a7
12 changed files with 689 additions and 451 deletions
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80
src/interpret.cpp
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@ -35,44 +35,6 @@ class Thread: public vm::Thread {
uintptr_t stack[StackSizeInWords];
};
int
lineNumber(Thread* t, object method, unsigned ip)
{
if (methodFlags(t, method) & ACC_NATIVE) {
return NativeLine;
}
// our parameter indicates the instruction following the one we care
// about, so we back up first:
-- ip;
object code = methodCode(t, method);
object lnt = codeLineNumberTable(t, code);
if (lnt) {
unsigned bottom = 0;
unsigned top = lineNumberTableLength(t, lnt);
for (unsigned span = top - bottom; span; span = top - bottom) {
unsigned middle = bottom + (span / 2);
LineNumber* ln = lineNumberTableBody(t, lnt, middle);
if (ip >= lineNumberIp(ln)
and (middle + 1 == lineNumberTableLength(t, lnt)
or ip < lineNumberIp(lineNumberTableBody(t, lnt, middle + 1))))
{
return lineNumberLine(ln);
} else if (ip < lineNumberIp(ln)) {
top = middle;
} else if (ip > lineNumberIp(ln)) {
bottom = middle + 1;
}
}
abort(t);
} else {
return UnknownLine;
}
}
inline void
pushObject(Thread* t, object o)
{
@ -734,43 +696,7 @@ store(Thread* t, unsigned index)
ExceptionHandler*
findExceptionHandler(Thread* t, int frame)
{
object method = frameMethod(t, frame);
object eht = codeExceptionHandlerTable(t, methodCode(t, method));
if (eht) {
for (unsigned i = 0; i < exceptionHandlerTableLength(t, eht); ++i) {
ExceptionHandler* eh = exceptionHandlerTableBody(t, eht, i);
if (frameIp(t, frame) - 1 >= exceptionHandlerStart(eh)
and frameIp(t, frame) - 1 < exceptionHandlerEnd(eh))
{
object catchType = 0;
if (exceptionHandlerCatchType(eh)) {
object e = t->exception;
t->exception = 0;
PROTECT(t, e);
PROTECT(t, eht);
catchType = resolveClassInPool
(t, codePool(t, t->code), exceptionHandlerCatchType(eh) - 1);
if (catchType) {
eh = exceptionHandlerTableBody(t, eht, i);
t->exception = e;
} else {
// can't find what we're supposed to catch - move on.
continue;
}
}
if (catchType == 0 or instanceOf(t, catchType, t->exception)) {
return eh;
}
}
}
}
return 0;
return findExceptionHandler(t, frameMethod(t, frame), frameIp(t, frame));
}
void
@ -839,7 +765,7 @@ interpret(Thread* t)
&byteArrayBody
(t, methodName(t, frameMethod(t, frame)), 0));
int line = lineNumber(t, frameMethod(t, frame), ip);
int line = findLineNumber(t, frameMethod(t, frame), ip);
switch (line) {
case NativeLine:
fprintf(stderr, "(native)\n");
@ -2987,7 +2913,7 @@ class MyProcessor: public Processor {
virtual int
lineNumber(vm::Thread* t, object method, int ip)
{
return ::lineNumber(static_cast<Thread*>(t), method, ip);
return findLineNumber(static_cast<Thread*>(t), method, ip);
}
virtual object*